Lens change
The main advantage of cameras with interchangeable lenses over compact cameras is, as the discerning reader has already guessed, the ability to change lenses. Changing the lens itself is a…

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Image angle
The angle of the image or the angular field of the lens is the angle formed by the rays connecting the extreme opposite points of the frame with the optical…

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How to use autofocus
Autofocus or autofocus for most photographic scenes is the preferred solution over manual focus. In skilled hands, autofocus focuses more precisely, and, most importantly, faster than the average photographer. However,…

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operating systems

How to use autofocus

Autofocus or autofocus for most photographic scenes is the preferred solution over manual focus. In skilled hands, autofocus focuses more precisely, and, most importantly, faster than the average photographer. However, autofocus is far from being as simple as it might seem to a novice amateur photographer, and its proper use is very far from the point-and-shoot principle. There are a number of subtleties that you should learn if you want autofocus to stop living its own life and begin to do what you want from it.

I highly recommend that you re-read that section of the manual for your camera that focuses on autofocus – these are some of the most useful pages in the entire manual, and the information contained therein should not be neglected. At a minimum, you should be aware of which controls are responsible for switching between different autofocus modes and choosing the focus point you need. Continue reading

Capacity

The bit depth or color depth of a digital image is the number of binary bits (bits) used to encode the color of a single pixel.

It is necessary to distinguish between the terms bit per channel (bpc – bits per channel) and bit per pixel (bpp – bits per pixel). The bit depth for each of the individual color channels is measured in bits per channel, while the sum of the bits of all channels is expressed in bits per pixel. For example, an image in the Truecolor palette has a resolution of 8 bits per channel, which is equivalent to 24 bits per pixel, because the color of each pixel is described by three color channels: red, green and blue (RGB model). Continue reading

Diffraction

Diffraction is an optical phenomenon that limits the sharpness of a photograph while reducing the relative aperture of the lens. Unlike other optical aberrations, diffraction is fundamentally unremovable, universal and equally common to all photographic lenses without exception, regardless of their quality and cost.

Diffraction can only be seen at 100% magnification. Notice how the image becomes less and less sharp with increasing aperture.
With the passage of light through the aperture, the bulk of the light waves continues to move rectilinearly. However, those waves whose path lies near the very edge of the diaphragm deviate from their original direction, trying to go around the obstacle that has arisen on their way. The smaller the size of the aperture Continue reading

The most amazing photo shoot
Photo albums in kindergartens is a difficult topic, if not sick. Each garden has its own photographer who has been working with the garden for more than a year, regularly…

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Mirrors - everything?
The digital camera market is undergoing tremendous transformation. It’s no secret to anyone that digital soap dishes have disappeared into oblivion, having almost completely lost their place in the market…

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RAW or not RAW
The RAW format will never be accepted. Never means “never”, and not “not in the near future”. Old photographers remember that before its appearance there were several formats that, although…

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Exposure: Theory
A good exposure is critical for quality photography. However, the essence of the exposure is extremely simple. Exposure is just the amount of light entering the photosensor. The process of…

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